Posted by Baree Panopioalmost 2 years ago
MINIMUM EMBEDMENT DEPTH OF POST-INSTALLED BOLTS
I can't seem to find a code provision directly implying for a minimum embedment depth for post installed anchors. The only thing i can find is the use of 12db embedment depth for petrochemical facilities.
Is there a rule of thumb we can assume for the embedment depth it's:
a. shear only (e.g. 12db or 10db)
b. shear and tension (e.g. 15db or 20db)
Or is just capacity based where we need to analyse the connections first?
1 Reply
Posted by Carlo Redosendoalmost 2 years ago
Hi Engr. Panopio. Thank you for your question.Minimum embedment depth of post installed anchors are not indicated in ACI and NSCP. It is usually indicated in the approval document of the specific anchor you intend to use. Let's use the chemical mortar HY200v3 + HAS Rod for example. Referring to the approval report ICC-ES ESR-4868 Table 18 where the minimum embedment depth is indicated per diameter. You can download the pdf file of the Evaluation Service Report in the ICC-ES website at https://icc-es.org/ if you know the ESR number or you can visit our online software called PROFIS Engineering Software at https://profisengineering.hilti.com/. In PROFIS Engineering Software, you can download various approval documents like ESR, ETA, IAPMO, etc. depending on the code that you are using. As for the design, in determining correct embedment depth, you may use the provisions in the NSCP 2015 Chapter 4 Section 417 for the anchor design and download the said approval document to see the design information needed in the equations. But for simpler, faster and optimized solution, you may use the PROFIS Engineering Software which the approval documents are already integrated.If you have further questions regarding this matter, please do not hesitate to reach out.